用两步水热合成方法制备硼掺杂纳米晶TiO2粉体,研究了硼在纳米晶氧化钛中的掺杂状态.结果表明,一定硼源加入和水热过程是在TiO2粉体中实现有效硼掺杂的必要条件.当硼含量较高时,硼原子在Ti02表面形成具有可调节Ti02能带结构的B-Ti-O表面掺杂态,可有效提高TiO2的可见光吸收性能,而且可见光吸收强度随着硼掺杂量的增大而提高.
参考文献
[1] | M.Adachi,Y.Mnsuke Murata,J.Takao,T.J.T.Jiu,M.Sakamoto,F.M.Wang,Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "Oriented Attachment" mechanism,J.Am.Chem.Soc.,126,14943(2004) |
[2] | A.L.Linsebigler,G.Q.Lu,J.T.Yates,.Jr.Photocatalysis on TiO2 surfaces-principles,mechanisms,and selected re-sults,Chem.Rev.,05,735(1995) |
[3] | A.Hagfeldt,M.Gratzel,Light-induced redox reactions in nanocrystalline systems,Chem.Rev.,95,49(1995) |
[4] | A.Fujishima,K.Honda,Photolysls of water at a semicon-ductor electrode,Nature,238,37(1972) |
[5] | R.Asahi,T.Morikawa,K.Ohwaki,K.Aoki,Visible-light photocatalysis in nitrogen-doped titanium oxides,Science,203,269(2001) |
[6] | J.Gole,J.Stout,C.Burda,Y.Lou,X.Chen,Highly efficient formation of visible light tunable TiO2-xNx photocata-lysts and their transformation at the nancecale,J.Phys.Chem.B,108,1230(2004) |
[7] | H.Irie,H.Watanabe,K.Hashimoto,Nitrogen-concentration dependence on photocatalytic activity of TiO2-xNx powders,J.Phys.Chem.B,107,5483(2003) |
[8] | S.Sato,R.Nakamura,S.Abe,Visible-light sensitization of TiO2 photocatalysts by wet-method N doping,Appl.Catal.A:General,284,131(2005) |
[9] | S-K.Joung,T.Amemiya,M.Murabayashi,K.Itoh,Rela-tion between photocatalytic activity and preparation con-ditions for nitrogen-doped visible light-driven TiO2 pho-tocatalysts,Appl.Catal.A:General,312,20(2006) |
[10] | X.Chen,C.Burda,Photoelectron spectroscopic investi-gation of nitrogen-doped titania nanoparticles,J.Phys.Chem.B,108,15446(2004) |
[11] | J.C.Yu,J.G Yu,W.Ho,Z.Jiang,L.Zhang,Effect of F-doping on the photocatalytic activity and micrcetructures of nanocrystalline TiO2 powders,Chem.Mater.,14,3808(9.002) |
[12] | G.Liu,Z.Chen,C.Dong,Y.Zhao,F.Li,G.Q.Lu,H.M.Cheng,Iodine-doped mesoporons titania with a bicrystalline framewor,J.Phys.Chem.B,110,20823(2006) |
[13] | W.Zhao,W.Ma,C.Chen,J.C.Zhao,Z.G.Shuai,Efficient degradation of toxic organic pollution with Ni2O3/TiO2-xBx under visible light irradiation,J.Am.Chem.Soc.,126,4782(2004). |
[14] | K.Y.Jung,S.B.Park,S.-K.Ihm,Local structure and pho-tocatalytic activity of B2O3-SiO2/TiO2 ternary mixed oxides prepare by sol-gel method,Appl.Catal,B:Envi-ron.,51,239(2004) |
[15] | D.Chen,D.Yang,Q.Wang,Z.Jiang,Effects of boron dop-ing onphotocatalytic activity and microstructure of tita-nium dioxide nanoparticles,Ind.Eng.Chem.Res.,45,12(2006) |
[16] | H.Geng,S.Yin,X.Yang,Z.Shual,B.Liu,Geometric and electronic structures of the boron-doped photocatalyst TiO2,J.Phys.:Cond.Matter,18,87(2006) |
[17] | T.Ohsaka,Temperature dependence of the Raman spec-trum in anataee TiO2,J.Phys.Soc.Jpn.,48,1661(1980) |
[18] | D.Bersani,G.Antonioli,P.P.Lottici,T.Lopez,Raman study of nanosized titania prepared by sol-gel route,J.Non-Cryst.Solids,175,232(1998) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%